* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "PingFang SC", "Microsoft Yahei", sans-serif;
}


/* canvas {
  position: absolute;
} */

#image {
    width: 100vw;
    height: 100vh;
    object-fit: cover;
}

#mask {
    position: absolute;
    left: 0;
    top: 0;
    opacity: 0;
}

div.loading {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    background: rgba(0, 0, 0, 0.5);
    font-size: 2em;
    color: white;
    display: none;
}

div.loading img {
    margin-bottom: 1em;
    animation: rotate 2s linear infinite;
}

@keyframes rotate {
    from {
        transform: rotate(0);
    }
    to {
        transform: rotate(360deg);
    }
}